Provider search
One search queries 28 provider adapters at once and ranks the results so the right one comes first.
Synchronisation
The offset to the audio is measured and corrected — only the shift, so signs and karaoke keep their full length.
Waveform editor
Waveform and cue list in one view. Speech lane, reading speed, jump navigation, safe repairs.
Wanted scanner
Sublarr spots missing languages in the background and fills them in while you do something else.
Library
Every episode shows its subtitles as individual pills. One click opens the editor, sync or HI removal.
Cleanup
Duplicate sidecars, orphaned files, stale backups — found, shown, and removed only once you approve.
Reliability
If a provider goes down it gets isolated. Quotas are respected, API keys rotated.
Language profiles
Anime in Japanese, films in German — at the same time. Separate rules per collection.
Use cases
Automatic subtitles with Sonarr and Radarr
Sonarr and Radarr fetch the episode. Sublarr fetches the subtitle that goes with it — seconds after the import, without you searching.
Manage Jellyfin and Emby subtitles automatically
Sublarr puts the subtitle next to the file and tells your media server. The next time you press play, it is there.
Find, score and clean ASS subtitles for anime
Fansub releases live on styling, positioning and typeset signs. Sublarr looks for exactly that, ranks ASS above SRT, and tidies up afterwards.